[PATCH v2] git-p4: fix failed submit by skip non-text data files

From: "dorgon.chang" <redacted>

If the submit contain binary files, it will throw exception and stop submit when try to append diff line description.

This commit will skip non-text data files when exception UnicodeDecodeError thrown.

The skip will not affect actual submit files in the resulting cl,
the diff line description will only appear in submit template,
so you can review what changed before actully submit to p4.

I don't know if add any message here will be helpful for users,
so I choose to just skip binary content, since it already append filename previously.

Signed-off-by: dorgon.chang <redacted>
---
    git-p4: fix failed submit by skip non-text data files
    
    git-p4: fix failed submit by skip non-text data files
    
    If the submit contain binary files, it will throw exception and stop
    submit when try to append diff line description.
    
    This commit will skip non-text data files when exception
    UnicodeDecodeError thrown.
    
    I am using git-p4 with UnrealEngine game projects and this fix works for
    me.
    
    Signed-off-by: dorgon.chang dorgonman@hotmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-977%2Fdorgonman%2Fdorgon%2Ffix_gitp4_get_diff_description-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-977/dorgonman/dorgon/fix_gitp4_get_diff_description-v2
Pull-Request: https://github.com/git/git/pull/977

Range-diff vs v1:

 1:  19b59f40b183 ! 1:  606729bda112 git-p4: fix failed submit by skip non-text data files
     @@ Commit message
      
          This commit will skip non-text data files when exception UnicodeDecodeError thrown.
      
     +    The skip will not affect actual submit files in the resulting cl,
     +    the diff line description will only appear in submit template,
     +    so you can review what changed before actully submit to p4.
     +
     +    I don't know if add any message here will be helpful for users,
     +    so I choose to just skip binary content, since it already append filename previously.
     +
          Signed-off-by: dorgon.chang [off-list ref]
      
       ## git-p4.py ##
     @@ git-p4.py: def get_diff_description(self, editedFiles, filesToAdd, symlinks):
      +                    for line in f.readlines():
      +                        newdiff += "+" + line
      +                except UnicodeDecodeError:
     -+                    pass # Fond non-text data
     ++                    pass # Found non-text data and skip, since diff description should only include text
                       f.close()
       
               return (diff + newdiff).replace('\r\n', '\n')


 git-p4.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/git-p4.py b/git-p4.py
index 4433ca53de7e..dc1f46351845 100755
--- a/git-p4.py
+++ b/git-p4.py

@@ -1977,8 +1977,11 @@ def get_diff_description(self, editedFiles, filesToAdd, symlinks):
                 newdiff += "+%s\n" % os.readlink(newFile)
             else:
                 f = open(newFile, "r")
-                for line in f.readlines():
-                    newdiff += "+" + line
+                try:
+                    for line in f.readlines():
+                        newdiff += "+" + line
+                except UnicodeDecodeError:
+                    pass # Found non-text data and skip, since diff description should only include text
                 f.close()
 
         return (diff + newdiff).replace('\r\n', '\n')

base-commit: d4a392452e292ff924e79ec8458611c0f679d6d4
-- 
gitgitgadget